With the right conditions and the right, easy freespooling reel, you can get an 1/8oz bait to behave. Lighter than that and you just can't get it done. 6 1/2' and 7' lite action rods and either tiny braid with a fluorocarbon leader or 4lb mono and a good reel and they get to be real fun. I've caught Largemouth on a 5 1/2' 6lb outfit up to 6lbs. A good drag is important in a rig like this, and a bigger spool diameter gives a better drag and helps keep the line memory to a manageable level. Tiny reels have a tight loop to the line memory and wont cast a featherweight plug as well.
Creativity is just intelligence fooling around